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/* Copyright (c) 2003-2004, Roger Dingledine
* Copyright (c) 2004-2006, Roger Dingledine, Nick Mathewson.
* Copyright (c) 2007-2020, The Tor Project, Inc. */
/* See LICENSE for licensing information */
/**
* \file muldiv.h
*
* \brief Header for muldiv.c
**/
#ifndef TOR_INTMATH_MULDIV_H
#define TOR_INTMATH_MULDIV_H
#include "lib/cc/torint.h"
unsigned round_to_next_multiple_of(unsigned number, unsigned divisor);
uint32_t round_uint32_to_next_multiple_of(uint32_t number, uint32_t divisor);
uint64_t round_uint64_to_next_multiple_of(uint64_t number, uint64_t divisor);
uint64_t tor_mul_u64_nowrap(uint64_t a, uint64_t b);
void simplify_fraction64(uint64_t *numer, uint64_t *denom);
/* Compute the CEIL of <b>a</b> divided by <b>b</b>, for nonnegative <b>a</b>
* and positive <b>b</b>. Works on integer types only. Not defined if a+(b-1)
* can overflow. */
#define CEIL_DIV(a,b) (((a)+((b)-1))/(b))
#endif /* !defined(TOR_INTMATH_MULDIV_H) */
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